U.S. patent number 7,017,209 [Application Number 11/079,807] was granted by the patent office on 2006-03-28 for curved wing board for a ct cradle.
This patent grant is currently assigned to Medtec, Inc.. Invention is credited to Travis S. De Jong, Thomas G. Kockler.
United States Patent |
7,017,209 |
De Jong , et al. |
March 28, 2006 |
Curved wing board for a CT cradle
Abstract
A curved wing board is provided for use on a CT cradle having a
curved upper surface. The wing board includes a base with a curved
lower surface and opposite sides. A pair of wing boards extend
upwardly and outwardly from the sides of the base to support a
patient's arms raised above their head. A pair of hand grips are
provided on the base for gripping by the patient. The curved wing
board matingly engages the curved CT cradle so as to comfortably
support the patient in a stable orientation during CT imaging.
Inventors: |
De Jong; Travis S. (Orange
City, IA), Kockler; Thomas G. (Remsen, IA) |
Assignee: |
Medtec, Inc. (Orange City,
IA)
|
Family
ID: |
36084444 |
Appl.
No.: |
11/079,807 |
Filed: |
March 14, 2005 |
Current U.S.
Class: |
5/601; 378/20;
378/208; 5/621; 5/632 |
Current CPC
Class: |
A61B
6/0442 (20130101) |
Current International
Class: |
A61B
6/00 (20060101); A61G 7/07 (20060101) |
Field of
Search: |
;5/621-623,601,632,640,643,646 ;378/20,208,209 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Santos; Robert G.
Attorney, Agent or Firm: McKee, Voorhees & Sease,
P.L.C.
Claims
What is claimed is:
1. A curved wing board for use on a CT cradle having a curved upper
surface, comprising: a base having a curved lower surface and
opposite sides; a pair of wings rigidly extending upwardly and
laterally outwardly from the sides of the base to support a
patient's arms raised above their head; and a fastener on the base
to secure the base to the CT cradle.
2. The curved wing board of claim 1 wherein the curvature of the
lower surface of the base corresponds to the curvature of the CT
cradle upper surface.
3. The curved wing board of claim 1 wherein the base has a upper
end and further comprising a pair of hand grips on the upper end of
the wing board.
4. The curved wing board of claim 1 wherein the lower surface of
the base has a fixed radius of curvature.
5. The curved wing board of claim 1 wherein the lower surface of
the base has a continuous radius of curvature.
6. The curved wing board of claim 1 wherein the wing board is
symmetrical about a longitudinal center line.
7. The curved wing board of claim 1 wherein the fastener includes
1/2 of a hook and loop fastener.
8. The curved wing board of claim 1 wherein the base has top and
bottom ends, and the wings extend partially between the top and
bottom ends.
9. A curved wing board adapted for use with a curved CT cradle,
comprising: a base having a curved lower surface to matingly engage
the curved CT cradle; a pair of rigid wings extending upwardly and
laterally outwardly from the base to support a patient's arm in a
spaced relation above the cradle; a hand grip on the base for
gripping by the patient's hands; and a fastener on the base to
secure the base to the cradle.
10. The curved wing board of claim 9 wherein the lower surface of
the base has a fixed radius of curvature.
11. The curved wing board of claim 9 wherein the lower surface of
the base has a continuous radius of curvature.
12. The curved wing board of claim 9 wherein the wing board is
symmetrical about a longitudinal center line.
13. The curved wing board of claim 9 wherein the fastener includes
1/2 of a hook and loop fastener.
14. The curved wing board of claim 9 wherein the base has top and
bottom ends, and the wings extend partially between the top and
bottom ends.
15. A method of positioning a patient for a CT scan, comprising:
securing a curved board to a curved CT cradle; lying the patient on
the board; extending the patient's arms above their head;
supporting the patient's arms with wings rigidly extending upwardly
and laterally outwardly from opposite sides of the board.
16. The method of claim 15 further comprising gripping a handgrip
on the board above the patient's head.
17. The method of claim 15 wherein the arms are spaced from the
cradle.
18. The method of claim 15 further comprising matingly engaging the
curved wing board to the curved CT cradle.
19. A curved wing board for use on a CT cradle having a curved
upper surface, comprising: a base having a curved lower surface and
opposite sides; a pair of wings rigidly extending upwardly and
laterally outwardly from the sides of the base to support a
patient's arms raised above their head; and the curvature of the
lower surface of the base corresponding to the curvature of the CT
cradle upper surface.
20. The curved wing board of claim 19 wherein the base has a upper
end and further comprising a pair of hand grips on the upper end of
the wing board.
21. A curved wing board for use on a CT cradle having a curved
upper surface, comprising: a base having a curved lower surface, an
upper end, and opposite sides; a pair of wings rigidly extending
upwardly and laterally outwardly from the sides of the base to
support a patient's arms raised above their head; and a pair of
hand grips on the upper end of the wing board.
Description
BACKGROUND OF THE INVENTION
CT imaging is commonly used for two purposes. First, diagnostic
imaging wherein a patient is positioned within a bore of a CT
imaging machine allows physicians and other medical personnel to
view internal slices of a patient's body, though generally not for
cancer detection. Second, CT imaging is used for radiation therapy
planning for treatment of cancerous tumors through the use of a
linear accelerator. In both procedures, a CT cradle is used for
positioning the patient. However, in the diagnostic imaging, the
cradle has a curved upper surface, whereas in the radiation therapy
process, the medical technician must use a flat surface or tabletop
mounted to the curved CT cradle to accommodate the flat surface of
the linear accelerator, which does not have an open bore as in the
CT machine. Thus, the two processes require different patient
support equipment. The present invention is directed towards the
first use of CT imaging wherein a patient is positioned within the
relatively small circular bore of the CT machine.
A primary objective of the present invention is the provision of a
curved wing board for use with the curved CT cradle for positioning
the patient during CT imaging.
Another objective of the present invention is the provision of a
curved wing board which matingly engages the curved CT cradle while
allowing the patient's arms to be positioned comfortably above
their head.
A further objective of the present invention is the provision of a
curved wing board which facilitates CT imaging of a patient's torso
without interference from the patient's arms.
Still another objective of the present invention is the provision
of a curved wing board which safely and securely mounts to a curved
CT cradle for use in patient imaging.
Another objective of the present invention is the provision of a
curved wing board which is economical to manufacture and durable in
use.
These and other objectives will become apparent from the following
description of the invention.
SUMMARY OF THE INVENTION
The curved wing board of the present invention is adapted for use
with a curved CT cradle. The wing board includes a base having a
curved lower surface which matingly engages the curved upper
surface of the CT cradle. A pair of wings extends upwardly and
outwardly from the base to support a patient's arms in a spaced
relation above the cradle. A pair of hand grips are provided at the
upper end of the base for gripping by the patient's hands when
their arms are extended above their head. One or more fasteners are
provided on the base to secure the wing board to the cradle.
Preferably, the wing board is symmetrical about a longitudinal
center line.
The present invention also is directed towards a method of
positioning a patient for a CT scan. The positioning method
includes the steps of securing a curved wing board to a curved CT
cradle, lying the patient on the board, extending the patient's
arms above their head, and supporting the patient's arms with the
wings of the board. The positioning method further includes the
step of gripping a hand grip on the wing board above the patient's
head.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a curved CT cradle having the
curved wing board of the present invention mounted thereto.
FIG. 2 is an exploded perspective view of the curved wing board of
the present invention.
FIG. 3 is a top plan view of the wing board, with the hand grips
removed therefrom for clarity.
FIG. 4 is an end elevation view of the wing board shown in FIG.
3.
FIG. 5 is a side elevation view of the wing board shown in FIG.
3.
FIG. 6 is a sectional view taken along lines 6--6 of FIG. 3.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The present invention is directed towards a curved wing board 10
adapted for use with a CT cradle 12. The cradle 12 includes a
curved upper surface 14. Curved CT cradles are well-known in the
art, such as those shown in U.S. Pat. No. 4,475,072 (element 11)
and U.S. Pat. No. 6,452,999.
The wing board 10 includes a base 16 having a top end 18, a bottom
end 20, and opposite sides 22. At least a portion of the base 16
includes a curved lower surface 24, which substantially matches the
curved upper surface 14 of the cradle 12, such that the wing board
10 will be stable when positioned on the cradle 12. As seen in FIG.
4, at the bottom end 20 of the base 16, the curvature of the lower
surface 24 is defined by a central portion 26 and opposite side
portions 28. At a mid-point of the base 16, the bottom surface 24
has a continuous radius, as seen in FIG. 6, matching the curvature
of the cradle 12. At both the top end 18 and the bottom end 20 of
the base 16, the curvature of the lower surface 24 provides a
substantial area of engagement with the upper surface 14 of the
cradle 12, such that the wing board 10 stably sits upon the cradle
12.
Fasteners may be provided on the wing board 10 to secure the board
to the cradle 12. Fasteners may be any convenient structure. In
FIG. 2, the fastener is shown to be Velcro hook or loop strips 30
extending along opposite sides of the lower surface 24 of the base
16, and adapted to engage the corresponding velcro loop or hook
(not shown) on the cradle 12.
A pair of wings 32 extend upwardly and outwardly from the opposite
sides 22 of the base 16. A pair of hand grips 34 are adjustably
mounted on the base 16. More particularly, guide tracks 36 are
secured to the base 16 using screws or bolts 37. A foot 40 on the
hand grips 34 is slidably received between the tracks 36. A pin 42
extends through the foot 40 for selective receipt in one of a
plurality of holes 44 extending along the longitudinal center line
of the wing board 10. Thus, the handgrips 34 can be selectively
positioned along the tracks 36, depending upon the length of a
patient's arms.
The board 10 may also include an area 38 for receiving a head rest
(not shown). Preferably the area 38 is recessed so as to define a
shoulder or lip 40 for retaining the head rest in position on the
board 10.
When the wing board 10 is used for non-cancerous diagnostic CT
imaging, the board 10 is secured to the cradle 12 with the hook and
loop material 30, or other fasteners, so as to stably sit in a
fixed position. The patient is then laid onto the wing board 10 and
cradle 12. Next, the patient raises his or her arms above their
head, and grips the hand grips 34 while their arms are supported by
the wings 32 in a position spaced or raised from the upper surface
14 of the cradle 12. Thus, the patient's upper torso can be imaged
using a CT machine, without interference from the patient's arms.
The curvature of the wing board 10, the wings 32, and the hand
grips 34 provide a comfortable bed or support table for the patient
during the CT imaging process.
The invention has been shown and described above with the preferred
embodiments, and it is understood that many modifications,
substitutions, and additions may be made which are within the
intended spirit and scope of the invention. From the foregoing, it
can be seen that the present invention accomplishes at least all of
its stated objectives.
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